Lensless imaging system, method of manufacturing lensless imaging system, and electronic apparatus

A method of manufacturing a lensless imaging system, the method comprising:

• forming an image sensor on a substrate;
• and
• forming a coded mask such that the coded mask faces one surface of the image sensor, the coded mask comprising at least one domain,
• wherein each of the at least one domain comprises a plurality of sub-domains, and
• wherein the forming of the coded mask comprises:
• forming the plurality of sub-domains in a first pattern;
• and
• forming a second pattern on each sub-domain of the plurality of sub-domains the respective sub-domains, such that the plurality of sub-domains are configured to deflect incident light based on a combination of the first pattern and the second pattern.

An electronic apparatus comprising:

• a lensless imaging system configured to generate an image of a subject;
• and
• a processor configured to control the lensless imaging system,
• wherein the lensless imaging system comprises:
• a coded mask comprising at least one domain;
• and
• an image sensor configured to:
• receive light that passes through the coded mask;
• and
• generate an electrical signal for image generation based on the received light,
• wherein each of the at least one domain comprises a plurality of sub-domains provided in a first pattern,
• wherein each of the plurality of sub-domains comprises a second pattern, and
• wherein the plurality of sub-domains are configured to deflect incident light based on a combination of the first pattern and the second pattern.